Sand anchor



FIG. 1 is a front perspective view of the sand anchor;

FIG. 2 is a front view of the sand anchor;

FIG. 3 is a rear view of the sand anchor;

FIG. 4 is a left side view of the sand anchor;

FIG. 5 is a right side view of the sand anchor;

FIG. 6 is a top view of the sand anchor; and,

FIG. 7 is a bottom view of the sand anchor. 

The ornamental design for a sand anchor, as shown and described. 